UBS Chief Says AI Investors Were Pricing in Perfection Before the Sharp Correction

UBS chief executive Sergio Ermotti said on Monday, 9 November 2026, that a sharp correction in AI stocks over the last few weeks had been a reaction to excessively high hopes that investors had had for the sector. Speaking at a UBS conference in Sydney, Ermotti said recent US midterm election results and the global debate about the implications of building up infrastructure could lead to delays in the AI sector delivering outcomes. "And the market until very recently — of course in the last few weeks we saw some correction — has been pricing perfection," he said. Ermotti added that he remains optimistic AI development will generate positive economic outcomes, but believes "the timing on how quickly we will get there, it's a little bit exaggerated."

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Nov 9, 2026 - 17:47

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UBS chief executive Sergio Ermotti speaking and gesturing at an event, wearing a suit with a lapel microphone, against a white backdrop with red UBS lettering.

UBS Chief Says AI Investors Were Pricing in Perfection Before the Sharp Correction

UBS chief executive Sergio Ermotti said on Monday, 9 November 2026, that a sharp correction in AI stocks over the last few weeks had been a reaction to excessively high hopes that investors had had for the sector. Speaking at a UBS conference in Sydney, Ermotti said recent US midterm election results and the global debate about the implications of building up infrastructure could lead to delays in the AI sector delivering outcomes.

"The market ... has been pricing perfection"

"And the market until very recently — of course in the last few weeks we saw some correction — has been pricing perfection," Ermotti said. Trillions of dollars of world stock market value were wiped out last week over fears that Democratic election victories would bring tighter US regulations for the AI industry. In a Bloomberg TV interview aired the same day, Ermotti pointed to the Democratic victory as a further source of uncertainty, with tighter oversight potentially slowing the build-out of AI capacity. Investors, he added, are now asking how much value the AI cycle can actually create — and how fast.

Optimistic, but the timetable is exaggerated

Ermotti said while he was optimistic AI development would generate positive economic outcomes, that he personally believed "the timing on how quickly we will get there, it's a little bit exaggerated." His warning centres on execution rather than ambition: the infrastructure has to be built first, and that is going to take longer than the market assumed. He also cautioned against underestimating inflation, warning that central banks may be forced to keep interest rates higher for longer as a result.

UBS's own AI rollout has slowed too

Ermotti added that some aspects of UBS' own implementation of AI into its operations had been "slowed down" by the integration of Credit Suisse, which UBS agreed to acquire in a Swiss government-backed rescue in 2023. Roughly 90 per cent of the legacy Credit Suisse applications earmarked for decommissioning had been switched off as of 30 September. The message from one of the world's biggest banks is clear: the AI opportunity is real, but the market priced it as if it would arrive on a perfect schedule — and it will not.